|Publication number||US7327580 B2|
|Application number||US 11/447,492|
|Publication date||Feb 5, 2008|
|Filing date||Jun 6, 2006|
|Priority date||Jun 7, 2005|
|Also published as||CA2547289A1, CA2547289C, CN1882231A, CN1882231B, DE602006001988D1, EP1732374A1, EP1732374B1, US20060274516|
|Publication number||11447492, 447492, US 7327580 B2, US 7327580B2, US-B2-7327580, US7327580 B2, US7327580B2|
|Original Assignee||Alstom Transport Sa|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (14), Referenced by (6), Classifications (5), Legal Events (5)|
|External Links: USPTO, USPTO Assignment, Espacenet|
The present invention relates to an electronic board device, of the type comprising:
Document FR-A-2 743 977 discloses a device of the abovementioned type, in which the board connectors of the chassis are fixed to a board secured to the chassis, called a motherboard, on the side of the chassis opposite the output connectors of the rack, and the removable boards, called daughterboards, are equipped with board connectors and output connectors arranged on opposite edges of the or each daughterboard.
This device facilitates the connection of the output connectors of the daughterboards and of the rack when the chassis is being inserted.
Nevertheless, with such a device, to remove a daughterboard, for example with a view to replacing it, it is necessary to remove the chassis from the rack, and to remove the daughterboard from the chassis. This complicates daughterboard maintenance or replacement operations.
An object of the invention is to propose an electronic board device facilitating the insertion and extraction of a board or a chassis containing one or more boards.
To this end, the invention proposes an electronic board device of the abovementioned type, characterized in that:
According to other embodiments, the electronic board device comprises one or more of the following features, taken in isolation or in any technically possible combination:
The invention and its advantages will be better understood on reading the following description, given purely by way of example and with reference to the accompanying drawings in which:
As represented in
The rack 4 is for example a rack in an electronic cabinet, comprising a plurality of racks, of a locomotive, a machine tool, and more generally an electrical machine.
The rack 4 comprises an enclosure 10, represented schematically by a double dash-dotted outline, delimiting a housing 12 and having a rear opening 14.
The opening 14 enables the insertion of the chassis 6 into the rack 4 in a direction, from the left to the right in
From now on in the description, the terms “front” and “rear” are understood by considering the direction of insertion of the chassis 6 into the rack 4.
The rack 4 comprises, in the housing 12, a supporting structure 16 and electrical output connectors 18, only one being visible, arranged at the front of the supporting structure 16, at the far end of the rack 4. Each connector 18 is connected to a remote electrical installation via electrical cable bundles 20.
The chassis 6 comprises a front far-end wall 22, a rear wall 24, and side walls 26 extending between the walls 22 and 24. The walls 22, 24 and 26 delimit a housing 28 for receiving the boards 8.
The chassis 6 comprises an electronic board 30, called the motherboard, which is fixed to an upper area of the wall 22.
The motherboard 30 comprises electrical board connectors 32, only one connector 32 being visible in
The wall 22 has in a lower area a front opening 34, facing the connectors 18.
For mounting each board 8, the chassis 6 comprises an upper sliding rail 38 and a lower sliding rail 38 fixed to the walls 26, and extending from the rear to the front of the chassis 6.
The wall 24 has a rear opening 40 enabling the insertion of the boards 8 into the chassis 6 in a direction of insertion of the boards into the chassis 6 identical to the direction of insertion of the chassis 6 into the rack 4. The openings 40 and 14 face each other.
Each board 8 comprises a supporting plate 42 carrying electrical and/or electronic components. The boards 8 are substantially identical and differ from one another in the components they carry and in the way these components are interconnected.
Each board 8 comprises a board connector 44 and an output connector 46 both fixed to the same front edge 45 of the plate 42.
The connector 44 is connected up with a corresponding connector 32, and the connector 46 is connected up with a corresponding connector 18 through the opening 34.
The connectors 44 and 32, and the connectors 46 and 18 connect up with each other according to the direction of insertion of each board 8 into the chassis 6.
Each board 8 comprises a panel 47 fixed to a rear edge 48 of the plate 42, and has side edges 49 engaged in the sliding rails 38.
The chassis 6 and the rack 4 have no additional connectors fixed to the chassis 6 and the rack 4 and connecting up with each other when the chassis 6 is being inserted into the rack 4.
As illustrated in
Similarly, it is possible to insert each board 8 into the chassis 6 through the openings 14 and 40, the chassis 6 having been received in the rack 4 beforehand. The insertion of the board 8 into the chassis 6 causes the board connectors 44 and 32, and the output connectors 46 and 18, to connect up simultaneously and automatically.
It is therefore possible to insert or extract each board 8 without removing the chassis 6 from the rack 4.
This is made possible in particular by the fact that the connectors 18 and 32 connect up with each other in the direction of insertion of each board 8 into the chassis 6 and disconnect in the opposite direction, and is facilitated by the arrangement of the connectors 44 and 46 of each board 8 on the edge 45, and of the corresponding connectors 18 and 32 at the far end of the chassis 6 when the latter is received in the rack 4.
As illustrated in
As this takes place, the boards 8 remain in the chassis 4 and the connectors 32 and 44 remain connected together, while the connectors 46 and 18 are automatically disconnected.
Similarly, it is possible to insert the chassis 6 containing the boards 8 into the rack 6 through the opening 14. In that case, the chassis 6 is pushed in until the connectors 46 and 18 are connected together through the opening 34.
This is made possible in particular by the fact that the connectors 18 and 32 connect up with each other in the direction of insertion of the chassis 6 into the rack 4, and disconnect from each other in the opposite direction.
Therefore, with the device 2 it is possible to selectively remove a board 8 or the chassis 6 via simple operations.
The device 2 is economical insofar as the number of electrical connectors is reduced, and is hardly affected by electromagnetic interference insofar as the boards 8 are connected to the connector 18 directly, without the use of electrical wires.
Furthermore, the device 2 is compact given that the connectors 18 connect directly to the connectors 46 through the opening 34. The connectors 32 and 18 are protected given that they are located at the far end of the chassis 6 and of the rack 4, and they do not risk being damaged.
Furthermore, production and maintenance are simplified, and reliability is improved due to the limited use of electrical wires.
It is possible to provide a covering to close the opening 40 in the chassis 6, and a covering to close the opening 14 in the rack 4.
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|U.S. Classification||361/760, 361/735|
|Jun 6, 2006||AS||Assignment|
Owner name: ALSTOM TRANSPORT SA, FRANCE
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:RUQUE, CHRISTIAN;REEL/FRAME:017975/0819
Effective date: 20060524
|Aug 1, 2011||FPAY||Fee payment|
Year of fee payment: 4
|Apr 20, 2015||AS||Assignment|
Owner name: ALSTOM TRANSPORT TECHNOLOGIES, FRANCE
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ALSTOM TRANSPORT SA;REEL/FRAME:035455/0513
Effective date: 20150225
|Jul 27, 2015||FPAY||Fee payment|
Year of fee payment: 8
|Aug 10, 2015||AS||Assignment|
Owner name: ALSTOM TRANSPORT TECHNOLOGIES, FRANCE
Free format text: CORRECTIVE ASSIGNMENT TO REMOVE ERRONEOUS FILED PATENT NO. 6250442 PREVIOUSLY RECORDED AT REEL: 035455 FRAME: 0513. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT;ASSIGNOR:ALSTOM TRANSPORT SA;REEL/FRAME:036344/0852
Effective date: 20150225